Honda GCV530 / GXV530 Series Engines. Fits Honda GCV530 and GXV530 series Engines;. Honda GCV520U / GCV530 / GCV530U / GCV530R. Honda GXV520U / GXV530 / GXV530R / GXV530U. It provides superior protection against the destructive effects of dirt ingestion, improves airflow and prolongs engine life by providing clean filtered air while running.